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Cressi MC9-SC / Compact Pro pressure regulator

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Compensated Expansion Valve - Specifically designed for cold waters

Manufacturer's Suggested Retail Price : $341.97

1 year warranty


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Cressi XS Compact PRO-MC9 SC - Din 300








Cressi MC9-SC / Compact Pro pressure regulator

Maximum performance in minimum space

A very lightweight second stage, the Compact is made of lightweight technopolymers to eliminate jaw fatigue. Easy to store and easy to dive, the Compact includes a pre/dive venturi control knob to manage constant flow and maximize performance at depth.

Excellent thermal conductivity

The second stage has been made with a special Thermoplastic Thermally Conductive Neopolymer that can transfer heat like a metal, maintaining the design flexibility, chemical resistance and physical-mechanical properties of a traditional thermoplastic, thus achieving great lightness combined with a thermally conductive property equal to that of metal boxes. Thanks to this material and to a specially designed discharge valve, it has been possible to pass all the tests for use in cold water with flying colours

A cold water expansion valve

Regulator designed specifically for cold water. Combines a balanced diaphragm first stage with a SC system for cold water with a chamber tight seal and a light and compact second stage, which offers high performance in water temperatures below 10°C. In particular, in order to obtain very high performance in a low temperature environment.


First floor: : Balanced diaphragm
2 output HP 7/16 UNF
4 outputs HP 3/8 UNF
Working pressure: 300 bar (4350 psi) DIN version, 232 bar (3365 psi) caliper version
Calibration pressure : 10 Bars
Self-catalytic nickel-plated brass body
Self-catalytic nickel-plated high-capacity cone filter
Removable nozzle in Aisi 316
Anti-pressure drop air spring
Adjusting spring: stainless steel with micro-blasting treatment
Replaceable cylinder with anti-friction and anti-corrosion properties
Elastomer protection
Flow rate: 4500 l/min
Weight of the version with bracket: 650 g
Weight of DIN version: 510 g

Second floor: : Downstream system
Adjustable venturi effect
Patented anti-friction lever
Large purge button
Thermally conductive technopolymer body
Scratch-resistant surface
Bayonet lid support with safety lock
Stainless steel lid
Deflector removable without tools
Weight without hose: 140 g

Combined performance: : Average cracking force of 7.5 mbar
Average respiratory effort of 1.2 J/l
Extremely light flexible sheath, and flexible weight: 153 gr.

CERTIFICATION EN250/2014 : 1st STAGE MC9-SC The chamber MC9's 1st stage seal is closed off from the environment, protecting it from icing in cold water and from particle contamination in muddy conditions.

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